Practice Test Geeks(CET) Certified Electronics Technician Practice Test
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Circuit Theory and Analysis Flashcards

7 cards from real CET practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Circuit Theory and Analysis flashcards as text

  1. The impedance of a series RC circuit at frequency f is:

    Answer: Z = √(R² + XC²)

    Series RC impedance magnitude is Z = √(R² + XC²), combining resistance and capacitive reactance as phasor components.

  2. The phase angle of a series RL circuit is given by:

    Answer: θ = arctan(XL/R)

    The phase angle θ = arctan(XL/R), indicating how much the current lags the voltage in an inductive circuit.

  3. The resonant frequency of a series RLC circuit is determined by which two components?

    Answer: L and C

    Resonant frequency f₀ = 1/(2π√(LC)); resistance affects Q and bandwidth but not the resonant frequency.

  4. In a circuit with dependent sources, which theorem CANNOT be directly applied without modification?

    Answer: Superposition (for dependent sources alone)

    Superposition cannot be applied to dependent sources alone; they must remain active in the circuit while independent sources are toggled off.

  5. What is the conductance G of a 50 Ω resistor?

    Answer: 0.02 S

    Conductance G = 1/R = 1/50 = 0.02 S (siemens), the reciprocal of resistance.

  6. A circuit has a power factor of 0.8 lagging. This means the load is:

    Answer: Inductive (lagging)

    A lagging power factor indicates an inductive load where current lags behind the voltage waveform.

  7. When using node-voltage analysis, a supernode is formed when:

    Answer: A voltage source connects two non-reference nodes

    A supernode is created when an independent or dependent voltage source lies between two non-reference nodes, requiring both nodes to be analyzed together.